Joss Coffee comes from Yogyakarta, joss Coffee has a characteristic that is by dipping the charcoal into a glass which contains a coffee. Charcoal that has been smoldering in the fiery furnace taken then on Pat Pat to dust ashes were knocked out and then dipped in coffee. The name kopi joss also comes from the sound of the charcoal when placed into a glass which contains a coffee.
Coffee with charred flavor sounds interesting. Want to try out at home. With instant coffee?? I use this